Physical Limits of Computing - UF CISE
... Figure 2. Physical Information, Entropy, and Known Information. Any physical system, when described only by constraints that upper-bound its spatial size and its total energy, still has only a finite number of mutually distinguishable states consistent with those constraints. The exact number N of s ...
... Figure 2. Physical Information, Entropy, and Known Information. Any physical system, when described only by constraints that upper-bound its spatial size and its total energy, still has only a finite number of mutually distinguishable states consistent with those constraints. The exact number N of s ...
Mathematical Aspects of Quantum Theory and Quantization Summer
... in a formula in physics are in general not pure numbers, but have a dimension and therefore take different numerical values for different systems of units. One has basic units of length [L], mass [M], time [T], etc.. Other quantities have derived dimensions, like velocity with the dimension [LT−1 ], ...
... in a formula in physics are in general not pure numbers, but have a dimension and therefore take different numerical values for different systems of units. One has basic units of length [L], mass [M], time [T], etc.. Other quantities have derived dimensions, like velocity with the dimension [LT−1 ], ...
Validity of Semiclassical Gravity in the Stochastic Gravity Approach
... be summarized as follows: a solution of semiclassical gravity is valid when it is stable with respect to quantum metric perturbations. This criterion implies to consider the quantum correlation functions of the metric perturbations. It is important to emphasize that the above validity criterion inco ...
... be summarized as follows: a solution of semiclassical gravity is valid when it is stable with respect to quantum metric perturbations. This criterion implies to consider the quantum correlation functions of the metric perturbations. It is important to emphasize that the above validity criterion inco ...
Good Families of Quantum Low-Density
... Classical low-density parity-check (LDPC) codes were first introduced by Robert Gallager in the 1960's and have reemerged as one of the most influential coding schemes. We present new families of quantum low-density parity-check error-correcting codes derived from regular tessellations of Platonic 2 ...
... Classical low-density parity-check (LDPC) codes were first introduced by Robert Gallager in the 1960's and have reemerged as one of the most influential coding schemes. We present new families of quantum low-density parity-check error-correcting codes derived from regular tessellations of Platonic 2 ...
Quantum error-correcting codes from algebraic curves
... code which attains the Singleton bound. Rains [28, Theorem 2] showed that all quantum MDS codes are pure. There is an interesting relationship betweeen quantum MDS codes and classical MDS codes. If Q is a quantum MDS stabilizer code with n − 2d + 2 > 0, then it gives rise to classical MDS codes [22, ...
... code which attains the Singleton bound. Rains [28, Theorem 2] showed that all quantum MDS codes are pure. There is an interesting relationship betweeen quantum MDS codes and classical MDS codes. If Q is a quantum MDS stabilizer code with n − 2d + 2 > 0, then it gives rise to classical MDS codes [22, ...
Simulating Charge Stability Diagrams for Double and Triple
... The field of quantum computing has received a great deal of attention in the physics community due to its exciting prospective applications and recent progress made in constructing systems with characteristics that allow for the formation of so called “qubits.” A qubit, short for quantum bit, repres ...
... The field of quantum computing has received a great deal of attention in the physics community due to its exciting prospective applications and recent progress made in constructing systems with characteristics that allow for the formation of so called “qubits.” A qubit, short for quantum bit, repres ...
The Quantum Phases of Matter The Harvard community has made
... in the Bardeen-Cooper-Schrieffer theory, a superconductor is obtained when the electrons form pairs, and the pairs Bose condense. In this case, the ground state is typically adiabatically connected to the Bose-Einstein condensate of electron pairs, which is a simple product of single boson states. He ...
... in the Bardeen-Cooper-Schrieffer theory, a superconductor is obtained when the electrons form pairs, and the pairs Bose condense. In this case, the ground state is typically adiabatically connected to the Bose-Einstein condensate of electron pairs, which is a simple product of single boson states. He ...
Fifth Quantum Thermodynamics Conference (QTD5)
... Hamiltonian have been successfully characterized. Here, we provide a general fundamental lower limit, valid for systems with an arbitrary Hamiltonian and in contact with a heat bath, on the work cost for the implementation of any logical process. This limit is given by a new information measure —the ...
... Hamiltonian have been successfully characterized. Here, we provide a general fundamental lower limit, valid for systems with an arbitrary Hamiltonian and in contact with a heat bath, on the work cost for the implementation of any logical process. This limit is given by a new information measure —the ...
Scaling of geometric phase close to multicritical points in cluster
... phases of matter. Yet, they can be of very different nature. Some of them exhibit approximate orders on a local scale and they can be characterized by their symmetries. Others possess subtler orders that can only be captured by highly non-local observables. One of the major challenging themes in mod ...
... phases of matter. Yet, they can be of very different nature. Some of them exhibit approximate orders on a local scale and they can be characterized by their symmetries. Others possess subtler orders that can only be captured by highly non-local observables. One of the major challenging themes in mod ...
- Philsci
... significantly from zero, the larger is the interval in which its Fourier transform differs from zero, in such a way that equation (1) must be satisfied. The Uncertainty Relation between position and momentum, therefore, is understood as a direct consequence of the mathematical, formal properties of ...
... significantly from zero, the larger is the interval in which its Fourier transform differs from zero, in such a way that equation (1) must be satisfied. The Uncertainty Relation between position and momentum, therefore, is understood as a direct consequence of the mathematical, formal properties of ...
Quantum teleportation
Quantum teleportation is a process by which quantum information (e.g. the exact state of an atom or photon) can be transmitted (exactly, in principle) from one location to another, with the help of classical communication and previously shared quantum entanglement between the sending and receiving location. Because it depends on classical communication, which can proceed no faster than the speed of light, it cannot be used for faster-than-light transport or communication of classical bits. It also cannot be used to make copies of a system, as this violates the no-cloning theorem. While it has proven possible to teleport one or more qubits of information between two (entangled) atoms, this has not yet been achieved between molecules or anything larger.Although the name is inspired by the teleportation commonly used in fiction, there is no relationship outside the name, because quantum teleportation concerns only the transfer of information. Quantum teleportation is not a form of transportation, but of communication; it provides a way of transporting a qubit from one location to another, without having to move a physical particle along with it.The seminal paper first expounding the idea was published by C. H. Bennett, G. Brassard, C. Crépeau, R. Jozsa, A. Peres and W. K. Wootters in 1993. Since then, quantum teleportation was first realized with single photons and later demonstrated with various material systems such as atoms, ions, electrons and superconducting circuits. The record distance for quantum teleportation is 143 km (89 mi).